What is the material performance grade of C1, C5, C7, C8, C9 of the magnet?

The customer wants C8 grade magnet. What material is it? Not long ago, a colleague was asked by the customer, I believe that many magnet peers will encounter, some new magnet may not be too clear, the magnet C1, C5, C7, C8, C9 is what material? And the corresponding domestic performance grade to introduce to you.
In fact, this is the ferrite material, but it is the American standard, our domestic general Y beginning, such as Y8T, Y10T, Y20 and so on.
Well, now that we know it is the performance of ferrite, then the corresponding level of our domestic?
Well, we has sorted it out for you:

• C5 = Feroba2 = Fer2 = Y30 = HF26/18
• C8/C8A = Feroba3 = Fer3 = Y30H−1
• C1 = Y10T / Y8T
• C7 = Y26H – 2
• C8B = Y33
• C9 = Y30H – 2
• C10 = Y33H
• C11 = Y34
• C12 = Y30H – 2

American standard for ferrite C1 C5 C7 C8 C8A C9 C10 magnetic parameter table is also attached